Pairing ATC SCM11s with Tube Gear (Fisher 400) ? LS50

After swapping and testing numerous integrated tube amps (the list is long...), I finally settled for a beautiful Fisher 400. The question is now, which speakers???
LS3/5a, JR149, KEF LS50 and ATC SCM11s are receiving rave reviews but these like to be paired with powerful amps.
I was wondering if one you guys are running one of this configuration. I am specially interested in the ATC SCM11s. I am also open to any other bookshelf speakers recommendations. Thank you for any feedback !
The Fisher will drive any of those speakers well at moderate volumes! Just don't expect floor-shaking bass!
I use moderate power tube amps with my Rogers LS3/5A’s (ST70, Stromberg Carlson mono’s, Harmon Kardon ... ) No need for high power!